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52171.国产皮卡产品发展趋势
[汽车制造业] [2014-03-28]
这两年来美式风格开始引导宽体大越野型皮卡市场需求，由一些二类底盘衍生改装而成，如厢式车型以及各种需要皮卡离地间隙高底盘与柴油动力相对较大的专用车型，以满足特种行业市场之需求。
关键词：汽车；皮卡产品；发展趋势
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52172.现代汽车与重庆签署战略合作协议将推进中国第四工厂建设
[汽车制造业] [2014-03-28]
关键词：现代汽车；重庆；第四工厂
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52173.豪华车区域发展差异研究
[汽车制造业] [2014-03-28]
从2006年起，中国豪华车（豪华车包含奥迪、宝马及mini、奔驰、路虎、雷克萨斯、沃尔沃、凯迪拉克、保时捷、捷豹、英菲尼迪、讴歌等12个品牌的全部产品）连续八年高速增长，2013年销量突破130万台，仅次于美国排名世界第二，同时豪华车占乘用车市场份额（也称豪华车份额或豪华车渗透率，等于豪华车销量与整体乘用车销量的比值，通常用来反映一个国家或地区的豪华车发展水平）也提升至9%，显著高于同等收入国家，中国豪华车的发展完美诠释了“中国速度”。
关键词：豪华车；区域发展；影响因素；趋势判断
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52174.全球汽车泊车辅助系统市场报告（2014-2018年）
[信息传输、软件和信息技术服务业,汽车制造业] [2014-03-27]
Park assist systems are automotive systems that aid automobile drivers in parking a vehicle. The system, which is integrated into an automobile, provides improved parking management with a safe human-machine interface. Park assist systems are designed to avoid collisions in parking areas by focusing on the major causes of collisions such as drivers' errors, distractions, and space restrictions. The systems are highly efficient in warning a driver whenever required. The purpose of the deployment of park assist systems in vehicles is to enhance the driver's efficiency in parking, thereby providing a better user experience.
关键词：泊车辅助系统；汽车系统；停车管理；安全；人机界面
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52175.报废汽车钢板的粉碎试验与仿真研究
[汽车制造业,黑色金属冶炼和压延加工业] [2014-03-26]
The shredding test and simulation of steel-plate of scrap automobile are mentioned in this text.The result of experiment and simulation are compared.The situation of experiment and attaining the simulation result by the postprocessor program of ANSYS has found a reliable analysis method.The engineering software of ANSYS/ LS-DYNA is used to simulate.
关键词：汽车；钢铁；报废汽车；汽车钢板；粉碎试验；计算机模拟
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52176.汽车覆盖件成型的数字模拟技术应用研究
[汽车制造业] [2014-03-25]
This study explored the numerical simulation technique and its application range.By using numerical simulation technology,the automobile achieves mold design and optimization in the software,determines a more reasonable technological parameters and provids a useful reference to the mold design and the process of program development.The test shows that with the help of dynaform software to realize the design and optimization of the mould and make a simulation and analysis of its forming processes,through the simulation,the optimized blank is got,the numerical simulation of the cover to some degree has a guiding significance in the actual production.
关键词：汽车；数值模拟；模具设计；同轴开关
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52177.基于GPS和GMS的智能跟踪辅助系统设计
[汽车制造业] [2014-03-25]
With GSM (Global System for Mobile Communications) and the QT cross-platform development tool,we design an intelligent tracking and assistance system.The system consists of the user and the terminals.The user can track the old,while the terminal can send alarm messages to the user when the old press the alarm button.We design and implement the display,alarm,help and query functions.Also,the system has good portability and scalability.
关键词：汽车；智能跟踪；GPS；GMS
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52178.基于Adams/Car的汽车侧风稳定性仿真分析
[汽车制造业] [2014-03-25]
The vehicle simulation model of 78-DOF is built based on ADAMS/CAR.Both rationality and accuracy of simulation model are verified by comparison analysis methods between real vehicle test and virtual simulation test.The mathematical model of wind pressure center and lateral aerodynamic force are formulated by using the STEP function.The simulation results indicate that the vehicle has the excellent crosswind stability and congruent dynamic response,which agrees with United States (ESV) standard.
关键词：汽车；Adams/Car；侧风稳定性；仿真分析
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52179.消声器结构尺寸与声学性能影响研究
[汽车制造业] [2014-03-25]
Based on software GAMBIT,GT-POWER,SYSNOISE,through comprehensively using finite element and boundary element method,simulating and analyzing the acoustic performance for the basic noise reduction unit,establishing the finite element model,comparing the frequency and noise reduction of different volume ratio of cavity and throat tube.Simulation analysis and experimental results show that the resonant structure parameters have a direct effect on its resonant frequency and noise reduction amount,the relationship characteristic between them is that the ratio more bigger,the requency and noise reduction amount more bigger,too.And draw the two relation formulas through calculation.
关键词：汽车；消声器；声学性能分析；建模与仿真
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52180.模糊控制系统下主动悬置引擎控制线路的应用
[汽车制造业] [2014-03-25]
An automobile power-train active mount system with a piezoelectric stack actuator is introduced.The influence caused by power-train to the body of the car is analyzed by means of parameter self-tuning fuzzy PID control,on which the simulating results are based.It turns out that this control scheme can restrain the influence better caused by power-train to the body of the car.
关键词：汽车；主动悬置；PID；模糊控制
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